RA17 Installation and Operation Instructions

WARNING:

RECOGNIZE THIS SYMBOL

AS AN INDICATION OF

IMPORTANT SAFETY

INFORMATION

WARNING

THESE INSTRUCTIONS

ARE INTENDED AS AN AID

TO QUALIFIED, LICENSED

SERVICE PERSONNEL FOR

PROPER INSTALLATION,

ADJUSTMENT, AND

OPERATION OF THIS

UNIT. READ THESE

INSTRUCTIONS

THOROUGHLY

BEFORE ATTEMPTING

INSTALLATION OR

OPERATION. FAILURE

TO FOLLOW THESE

INSTRUCTIONS MAY

RESULT IN IMPROPER

INSTALLATION,

ADJUSTMENT, SERVICE,

OR MAINTENANCE

POSSIBLY RESULTING IN

FIRE, ELECTRICAL SHOCK,

PROPERTY DAMAGE,

PERSONAL INJURY, OR

DEATH.

AIR COOLED

CONDENSING UNITS

INSTALLATION INSTRUCTIONS

RA17 MODEL SERIES ¨C 17 SEER

FEATURING INDUSTRY STANDARD

R-410A REFRIGERANT

earth friendly refrigerant

Do not destroy this manual.

Please read carefully

and keep in a safe place

for future reference by a

serviceman.

ST-A1226-01-00

[ ] indicates metric conversions.

92-104921-07-00 (5/15)

Printed in USA

CONTENTS

Important

Safety Information ????????????????????????????????????????????? 3

Contents

General Information??????????????????????????????????????????? 4

Checking Product Received ????????????????????????????????????????4

Application ???????????????????????????????????????????????????????????????????4

Electrical and Physical Data?????????????????????????????????????????5

Specifications ???????????????????????????????????????????????????????????????6

Proper Installation ????????????????????????????????????????????????????????6

Active Compressor Protection Mode................24

Test and Fault Recall Modes...................................... 25

Conventional Thermostat Wiring......................30

Thermostat Wiring Diagrams............................31

ICC Control Operation......................................32

ICC Control Operation................................................ 32

Installation ????????????????????????????????????????????????????????? 7

Test and Fault Recall Modes............................34

Choosing a Location ?????????????????????????????????????????? 7

Operational Issues ???????????????????????????????????????????????????????7

Corrosive Environment ?????????????????????????????????????????????????7

For Units With

Space Limitations ?????????????????????????????????????????????????????????8

Customer Satisfaction Issues ??????????????????????????????????????8

Unit Mounting ???????????????????????????????????????????????????????????????8

Factory Preferred

Tie Down Method ?????????????????????????????????????????????????????????8

Electrical Wiring...............................................35

Power Wiring.............................................................. 35

Grounding................................................................... 35

Tools and Refrigerant ???????????????????????????????????????? 9

Tools Required for Installing and

Servicing R-410A Models ????????????????????????????????????????????9

Specifications of R-410A ?????????????????????????????????????????????9

Quick-Reference

Guide for R-410A ?????????????????????????????????????????????????????????9

Replacement Units ???????????????????????????????????????????10

Indoor Coil ????????????????????????????????????????????????????????10

Location.......................................................................10

Interconnecting Tubing ?????????????????????????????????????10

Refrigerant Level Adjustment ?????????????????????????????????????11

Interconnecting Tubing and Fitting Losses.................11

Liquid Line Selection ??????????????????????????????????????????????????11

Long Line Set Applications.........................................12

Oil Level Adjustment ??????????????????????????????????????????????????12

Suction Line Selection ???????????????????????????????????????????????13

Refrigerant Migration??????????????????????????????????????????????????13

Tubing Installation ??????????????????????????????????????????????????????18

Tubing Connections....................................................19

Leak Testing................................................................20

Condensing Units ???????????????????????????????????????????? 21

Equipped with EcoNet? ????????????????????????????????????????????21

Dual 7-Segment LED ?????????????????????????????????????????????????21

Line Voltage Connector...............................................21

Thermostat Connector................................................21

Low Volt Fuse..............................................................22

Low Pressure Control..................................................22

High Pressure Control.................................................22

Ambient Temperature Sensor......................................22

UP and SELECT Buttons............................................22

Memory Card..............................................................22

EcoNet Communication System? Control Wiring.....22

EcoNet Communication System? ICC Control.........22

2

Condensing Units.............................................23

Control Wiring...................................................35

Noncommunication Thermostat

Wiring Diagrams......................................................... 36

Power Wiring.............................................................. 37

Grounding................................................................... 37

Start-Up............................................................ 38

Checking Airflow ????????????????????????????????????????????? 38

Evacuation Procedure ??????????????????????????????????????????????? 39

Final Leak Testing........................................................39

Checking Refrigerant Charge............................40

Charging Units.............................................................40

Confirm ID Airflow and Coils are Clean......................40

Measurement Device Setup........................................40

Charging by Weight.....................................................40

Gross Charging by Pressure.......................................41

Final Charge by Subcooling........................................41

Finishing Up Installation ????????????????????????????????????????????? 42

Components and Controls ??????????????????????????????? 43

Compressor

Crankcase Heat (CCH) ??????????????????????????????????????43

High- and Low-Pressure

Controls (HPC and LPC)??????????????????????????????????? 43

Accessories ????????????????????????????????????????????????????? 34

Single Pole Compressor ????????????????????????????????????????????44

Time-Delay Control ????????????????????????????????????????????????????44

Low Ambient Control (LAC) ???????????????????????????????????????44

Hard-Start Components ????????????????????????????????????44

Diagnostics ?????????????????????????????????????????????????????? 45

Electrical Checks Flowchart........................................45

Cooling Mechanical Check Flowchart........................46

General Troubleshooting Chart ???????...........................47

Service Analyzer Charts ??????????????????????????????????????? 48-52

Cooling Troubleshooting Tips ????????????????????????????????????53

Wiring Diagrams ????????????????????????????????????????? 54-55

IMPORTANT SAFETY INFORMATION

WARNINGS:

CAUTIONS:

?R

 -410A systems operate at approximately 60%

higher pressures (1.6 times) than R-22 systems. Do

not use R-22 service equipment or components on

R-410A equipment. Use appropriate care when using

this refrigerant. Failure to exercise care may result in

equipment damage or personal injury.

?O

 nly match this outdoor unit with a matched indoor

coil or air handler approved for use with this outdoor

unit per the unit manufacturer¡¯s specification sheet.

The use of unmatched coils or air handler will likely

result in a charge imbalance between the cooling

and heating modes which can cause unsatisfactory

operation including a high-pressure switch lockout

condition.

?O

 nly use indoor coils approved for use on R-410A

systems. An R-22 coil will have a TXV or fixed

restrictor device that is not designed to operate

properly in an R-410A system and will result in

serious operational issues. The R-22 coil could also

contain mineral oil which is incompatible with the

POE oil used in R-410A systems and could result in

reliability issues with the compressor and TXVs.

?W

 hen coil is installed over a finished ceiling and/or

living area, it is required that a secondary sheet metal

condensate pan be constructed and installed under

the entire unit. Failure to do so can result in property

damage.

?T

 he compressor has an internal overload protector.

Under some conditions, it can take up to 2 hours for

this overload to reset. Make sure overload has had

time to reset before condemning the compressor.

Safety

?T

 hese instructions are intended as an aid to

qualified, licensed service personnel for proper

installation, adjustment, and operation of this

unit. Read these instructions thoroughly before

attempting installation or operation. Failure to

follow these instructions may result in improper

installation, adjustment, service, or maintenance

possibly resulting in fire, electrical shock,

property damage, personal injury, or death.

? The unit must be permanently grounded. Failure

to do so can cause electrical shock resulting in

severe personal injury or death.

? Turn off electric power at the fuse box or service

panel before making any electrical connections.

? Complete the ground connection before making

line voltage connections. Failure to do so can

result in electrical shock, severe personal injury,

or death.

? Disconnect all power to unit before starting

maintenance. Failure to do so can cause

electrical shock resulting in severe personal

injury or death.

? Never assume the unit is properly wired and/or

grounded. Always test the unit cabinet with a

noncontact voltage detector available at most

electrical supply houses or home centers before

removing access panels or coming into contact

with the unit cabinet.

? Do not use oxygen to purge lines or pressurize

system for leak test. Oxygen reacts violently with

oil, which can cause an explosion resulting in

severe personal injury or death.

?T

 he top of the scroll compressor shell is hot.

Touching the compressor top may result in serious

personal injury.

?T

 he manufacturer¡¯s warranty does not cover

any damage or defect to the unit caused by the

attachment or use of any components, accessories,

or devices (other than those authorized by the

manufacturer) into, onto, or in conjunction with

the heat pump. You should be aware that the

use of unauthorized components, accessories,

or devices may adversely affect the operation

of the heat pump and may also endanger life

and property. The manufacturer disclaims any

responsibility for such loss or injury resulting

from the use of such unauthorized components,

accessories, or devices.

3

GENERAL INFORMATION

WARNING:

General Information

Improper installation, or installation not made in

accordance with these instructions, can result

in unsatisfactory operation and/or dangerous

conditions and can cause the related warranty

not to apply.

The condensing unit is designed to operate with

standard 24 VAC thermostats and air handlers or

gas furnaces.

This installation instruction manual contains

complete instructions for installation and setup

using conventional 24 VAC controls. Please refer

to the manufacturer¡¯s specification sheets for

complete performance data, thermostat, and

accessory listings.

The information contained in this manual has

been prepared to assist in the proper installation,

operation, and maintenance of the air conditioning

system.

Read this manual and any instructions packaged

with separate equipment required to make up the

system prior to installation. Homeowner should

retain this manual for future reference.

To achieve optimum efficiency and capacity,

the matching indoor cooling coils listed in the

manufacturer¡¯s specification sheet should be used.

Checking Product Received

Upon receiving unit, inspect it for any shipping

damage. Claims for damage, either apparent or

concealed, should be filed immediately with the

shipping company. Check model number, electrical

characteristics, and accessories to determine if they

are correct. Check system components (indoor coil,

outdoor unit, air handler/furnace, etc.) to make sure

they are properly matched.

4

Application

Before specifying any air conditioning equipment,

a survey of the structure and a heat gain

calculation must be made. A cooling heat gain

calculation determines the amount of heat needed

to be removed. A heat gain calculation also

calculates the extra heat load caused by sunlight

and by humidity removal. These factors must be

considered before selecting an air conditioning

system to provide year-round comfort. The Air

Conditioning Contractors of America (ACCA)

J Manual method of load calculation is one

recognized procedure for determining the heating

and cooling load.

After the proper equipment combination has

been selected, satisfying both sensible and

latent requirements, the system must be properly

installed. Only then can the unit provide the

comfort it was designed to provide.

There are several factors that installers must

consider.

?O

 utdoor unit location

? Indoor unit blower speed and airflow

?P

 roper equipment evacuation

?S

 upply and return air duct design and sizing

?R

 efrigerant charge

?S

 ystem air balancing

?D

 iffuser and return air grille location and sizing

GENERAL INFORMATION

Electrical and Physical Data - cont.

RA17

ELECTRICAL

RA1724AJ2CB

RA1736AJ2CB

RA1748AJ2CB

RA1760AJ2CB

Voltage Phase

208-230

208-230

208-230

208-230

1

1

1

1

Freq

60

60

60

60

Fan

Motor

Full

Rated Load Locked Roto r

Load

Amperes

Amperes

Amperes

(RLA)

(LRA)

(FLA )

11.7/11.7

15.3/15.3

21.2/21.2

28.8/28.8

58.3

83.0

104.0

152.9

1.40

1.20

5.30

5.30

Fuse or HACR

Circuit Breaker

Minimum

Circuit

Ampacity

Amperes

Outdoor Coil

Face

Area

Sq. Ft .

[m 2]

No.

Rows

CFM

[L/s]

19.76 [1.84]

22.23 [2.07]

32.30 [3.00]

32.30 [3.00]

1

1

1

1

5133 [2423]

3540 [1671]

4251 [2006]

5133 [2423]

Maximum Minimum

Amperes Amperes

16/16

21/21

32/32

42/42

25/25

35/35

50/50

70/70

20/20

25/25

40/40

50/50

Weight

Refrig .

Per

Circuit

(oz. )

[g]

Net

Lbs.

[kg]

Shipping

Lbs. [kg]

128 [3629]

151 [4281]

204 [5783]

223 [6322]

160 [72.6]

180 [81.6]

231 [104.8]

241 [109.3]

167 [75.7]

187 [84.8]

238 [108.0]

248 [112.5]

General Information

Model

Number

PHYSICAL

Compressor

UNIT MODEL NUMBER EXPLANATION

R A 17 24 A

J 2 C B

MINOR SERIES

TYPE

C - COMMUNICATING

TYPE

2 - TWO STAGE

VOLTAGE

J = 1 PH, 208-230/60

MAJOR SERIES

CAPACITY

24 = 24,000 BTU/HR [7.03 kW]

36 = 36,000 BTU/HR [10.55 kW]

48 = 48,000 BTU/HR [14.07 kW]

60 = 60,000 BTU/HR [17.58 kW]

SEER

CONDENSER

BRAND

DIMENSIONAL DATA

RA17

24

36

48

60

Height ¡°H¡± inches [mm]

Length ¡°L¡± inches [mm]

Width ¡°W¡± inches [mm]

35 [889]

33.75 [857]

33.75 [857]

39 [991]

33.75 [857]

33.75 [857]

51 [1295]

35.75 [908]

35.75 [908]

51 [1295]

35.75 [908]

35.75 [908]

5

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